Items on death glitch into walls

Sometimes when i died the items i die with disappear, i assume they are glitching into the ground because the first time i suffocated in the ground because the ground didnt load in time so i fell through the floor and died underneath the floor, then the second time i was underwater in a corner, i was being sucked up to the ceiling and i drowned, my bed was right next to where i died so i was there with in 15 seconds but my stuff was gone. I dug up to see if it got sucked up but it was solid dirty and rock several blocks up. I assume the items are glitching into the blocks and disappearing. I feel like i cant play Minecraft until this is resolved for losing all of my progress is to painful. if it was just once i would have looked past it but i cant keep losing my progress. This use to never happen and now its happened twice in less than 24 hours on two different plat forms. This was on a realm survival world.